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Besides the text content, documents and their associated words usually come with rich sets of meta informa- tion, such as categories of documents and semantic/syntactic features of words, like those encoded in word embeddings. Incorporating…

Computation and Language · Computer Science 2017-09-20 He Zhao , Lan Du , Wray Buntine , Gang Liu

Our work addresses the problem of unsupervised Aspect Category Detection using a small set of seed words. Recent works have focused on learning embedding spaces for seed words and sentences to establish similarities between sentences and…

Computation and Language · Computer Science 2023-11-17 Thi-Nhung Nguyen , Hoang Ngo , Kiem-Hieu Nguyen , Tuan-Dung Cao

The number of documents available into Internet moves each day up. For this reason, processing this amount of information effectively and expressibly becomes a major concern for companies and scientists. Methods that represent a textual…

Information Retrieval · Computer Science 2017-03-21 Mohamed Morchid , Juan-Manuel Torres-Moreno , Richard Dufour , Javier Ramírez-Rodríguez , Georges Linarès

Structured information extraction from document images usually consists of three steps: text detection, text recognition, and text field labeling. While text detection and text recognition have been heavily studied and improved a lot in…

Computer Vision and Pattern Recognition · Computer Science 2020-09-10 Mengli Cheng , Minghui Qiu , Xing Shi , Jun Huang , Wei Lin

Topic models are used to identify and group similar themes in a set of documents. Recent advancements in deep learning based neural topic models has received significant research interest. In this paper, an approach is proposed that further…

Computation and Language · Computer Science 2024-10-15 Trishia Khandelwal

Topic segmentation and labeling is often considered a prerequisite for higher-level conversation analysis and has been shown to be useful in many Natural Language Processing (NLP) applications. We present two new corpora of email and blog…

Computation and Language · Computer Science 2014-02-05 Shafiq Rayhan Joty , Giuseppe Carenini , Raymond T Ng

One of the main computational and scientific challenges in the modern age is to extract useful information from unstructured texts. Topic models are one popular machine-learning approach which infers the latent topical structure of a…

Machine Learning · Statistics 2018-07-20 Martin Gerlach , Tiago P. Peixoto , Eduardo G. Altmann

The growing need to analyze large collections of documents has led to great developments in topic modeling. Since documents are frequently associated with other related variables, such as labels or ratings, much interest has been placed on…

Machine Learning · Statistics 2018-08-20 Filipe Rodrigues , Mariana Lourenço , Bernardete Ribeiro , Francisco Pereira

Topic segmentation of meetings is the task of dividing multi-person meeting transcripts into topic blocks. Supervised approaches to the problem have proven intractable due to the difficulties in collecting and accurately annotating large…

Machine Learning · Computer Science 2021-06-25 Alessandro Solbiati , Kevin Heffernan , Georgios Damaskinos , Shivani Poddar , Shubham Modi , Jacques Cali

Latent Dirichlet analysis, or topic modeling, is a flexible latent variable framework for modeling high-dimensional sparse count data. Various learning algorithms have been developed in recent years, including collapsed Gibbs sampling,…

Machine Learning · Computer Science 2012-05-14 Arthur Asuncion , Max Welling , Padhraic Smyth , Yee Whye Teh

Multi-document summarization (MDS) generates a summary from a document set. Each document in a set describes topic-relevant concepts, while per document also has its unique contents. However, the document specificity receives little…

Information Retrieval · Computer Science 2024-06-04 Congbo Ma , Wei Emma Zhang , Hu Wang , Haojie Zhuang , Mingyu Guo

An important task in NLP applications such as sentence simplification is the ability to take a long, complex sentence and split it into shorter sentences, rephrasing as necessary. We introduce a novel dataset and a new model for this `split…

Computation and Language · Computer Science 2021-09-13 Joongwon Kim , Mounica Maddela , Reno Kriz , Wei Xu , Chris Callison-Burch

In this paper we propose a general framework for topic-specific summarization of large text corpora and illustrate how it can be used for the analysis of news databases. Our framework, concise comparative summarization (CCS), is built on…

Computation and Language · Computer Science 2014-04-30 Jinzhu Jia , Luke Miratrix , Bin Yu , Brian Gawalt , Laurent El Ghaoui , Luke Barnesmoore , Sophie Clavier

Term frequency normalization is a serious issue since lengths of documents are various. Generally, documents become long due to two different reasons - verbosity and multi-topicality. First, verbosity means that the same topic is repeatedly…

Information Retrieval · Computer Science 2015-02-10 Seung-Hoon Na , In-Su Kang , Jong-Hyeok Lee

Uncovering hidden topics from short texts is challenging for traditional and neural models due to data sparsity, which limits word co-occurrence patterns, and label sparsity, stemming from incomplete reconstruction targets. Although data…

Computation and Language · Computer Science 2025-01-24 Quang Duc Nguyen , Tung Nguyen , Duc Anh Nguyen , Linh Ngo Van , Sang Dinh , Thien Huu Nguyen

In text classification tasks, fine tuning pretrained language models like BERT and GPT-3 yields competitive accuracy; however, both methods require pretraining on large text datasets. In contrast, general topic modeling methods possess the…

Computation and Language · Computer Science 2024-02-13 Weijie Xu , Xiaoyu Jiang , Jay Desai , Bin Han , Fuqin Yan , Francis Iannacci

Prior research notes that BERT's computational cost grows quadratically with sequence length thus leading to longer training times, higher GPU memory constraints and carbon emissions. While recent work seeks to address these scalability…

Computation and Language · Computer Science 2020-11-02 Yatin Chaudhary , Pankaj Gupta , Khushbu Saxena , Vivek Kulkarni , Thomas Runkler , Hinrich Schütze

This paper presents a modified neural model for topic detection from a corpus and proposes a new metric to evaluate the detected topics. The new model builds upon the embedded topic model incorporating some modifications such as document…

Computation and Language · Computer Science 2023-06-09 Tomoya Kitano , Yuto Miyatake , Daisuke Furihata

From organizing recorded videos and meetings into chapters, to breaking down large inputs in order to fit them into the context window of commoditized Large Language Models (LLMs), topic segmentation of large transcripts emerges as a task…

Computation and Language · Computer Science 2024-07-18 Dimitrios C. Gklezakos , Timothy Misiak , Diamond Bishop

Extracting and identifying latent topics in large text corpora has gained increasing importance in Natural Language Processing (NLP). Most models, whether probabilistic models similar to Latent Dirichlet Allocation (LDA) or neural topic…

Computation and Language · Computer Science 2023-03-31 Anton Thielmann , Quentin Seifert , Arik Reuter , Elisabeth Bergherr , Benjamin Säfken